[Skip to main content](#main-content) [OpenNash Jobs](https://jobs.opennash.com/) [Hiring report](/reports/hiring/) · [All RTX jobs](https://jobs.opennash.com/companies/rtx/) · [Search jobs](/search/) RTX · STERLING, VA, US # Principal Systems Engineer - Onsite STERLING, VA, US On-site Full-time Senior individual contributor Operations Listed on RTX’s official careers site. Posted September 17, 2026. Check that it is still open and apply there. [Apply on RTX’s careers site →](https://globalhr.wd5.myworkdayjobs.com/REC_RTX_Ext_Gateway/job/US-VA-STERLING-291--22640-Davis-Dr--DAVIS/Principal-Systems-Engineer---Onsite_01875559) [OpenNash Jobs](https://jobs.opennash.com/) / [RTX](https://jobs.opennash.com/companies/rtx/) / Principal Systems Engineer - Onsite ## Job description ### Date Posted 2026-09-16 Country: United States of America Location: US-VA-STERLING-291 ~ 22640 Davis Dr ~ DAVIS Position Role Type: Onsite U.S. Citizen, U.S. ### Person, or Immigration Status Requirements Active and transferable U.S. government issued security clearance is required prior to start date.​ U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance​ Security Clearance Type: Secret - Current Security Clearance Status: Active and existing security clearance required on day 1 Principal Systems Engineer - Onsite At RTX, the world largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world’s most complex problems. With our three market leading businesses, world-class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world. Collins Aerospace is a leader in technologically advanced, intelligent solutions that help redefine the aerospace and defense industry. With a comprehensive portfolio and deep technical expertise, we help customers meet the demands of the global market. Join us and help shape the future of aerospace and defense. ### Role Description As our next Principal Systems Engineer you will be integral to the to the design, development, integration, and sustainment of advanced training systems for military platforms. This role enables the delivery of high-fidelity training capabilities that accurately replicate mission systems, enabling aircrew and operators to train effectively in simulated environments. The ideal candidate brings systems engineering experience, a strong knowledge of avionics, mission systems or autonomous systems, and the ability to work across multidisciplinary teams in a defense or aerospace environment. ### This position requires US Government Department of Defense (DoD) Secret Security Clearance Day 1. ### Onsite This is an onsite role supporting our Sterling, VA location. ### Sign-on Bonus Eligible What YOU will do Be the focal point for systems engineering activities across the full lifecycle of training systems, including requirements development, design, integration, test, and sustainment Interface with customers, program managers, and internal stakeholders to align technical solutions with mission requirements - Ensure training systems accurately represent aircraft mission systems, including radar, communications, and command & control functions - Collaborate with software, hardware, and simulation engineers to integrate subsystems into cohesive training solutions - Identify risks and develop mitigation strategies related to system performance, integration, and delivery - Support upgrades, modifications, and obsolescence management for existing training systems - Mentor junior engineers and contribute to continuous improvement of engineering processes ​ Qualifications You Must Have: Experience with capture, analysis and decomposition of System requirements Understanding of the Product Development Lifecycle – from CONOPS to Sustainment - Must have experience with Model-Based System Engineering (MBSE) design tools (Enterprise Architect, Cameo, or equivalent) using SysML Ability to work in a classified environment and obtain/maintain required security clearance - Strong communication and collaboration skills. Requires on-site presence in a classified lab space. Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum - 8 years prior relevant experience or an Advanced Degree in a related field and minimum - 5 years of experience Active and transferable U.S. Government DoD Secret Security Clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance Qualifications We Prefer: Background in simulation and training system development Experience working in a SAFe Agile environment - Familiarity with real-time systems, distributed simulation or virtual training environments Experience with hardware/software integration and lab environments - Knowledge of DoD acquisition processes and standards What We Offer: Some of our competitive benefits package includes: Medical, dental, and vision insurance Three weeks of vacation for newly hired employees Generous 401(k) plan that includes employer matching funds and separate employer retirement contribution, including a Lifetime Income Strategy option Tuition reimbursement program Student Loan Repayment Program Life insurance and disability coverage Optional coverages you can buy pet insurance, home and auto insurance, additional life and accident insurance, critical illness insurance, group legal, ID theft protection Birth, adoption, parental leave benefits Ovia Health, fertility, and family planning Adoption Assistance Autism Benefit Employee Assistance - Plan, including up to 10 free counseling sessions Healthy You Incentives, wellness rewards program Doctor on Demand, virtual doctor visits Bright Horizons, child and elder care services Teladoc Medical Experts, second opinion program Eligible for relocation assistance And more! Learn More & Apply Now! Do you want to be a part of something bigger? A team whose impact stretches across the world, and even beyond? At Collins Aerospace, our Mission Systems team helps civilian, military and government customers complete their most complex missions — whatever and wherever they may be. Our customers depend on us for intelligent and secure communications, missionized systems for specialized aircraft and spacecraft and collaborative space solutions. By joining our team, you’ll have your own critical part to play in ensuring our customer succeeds today while anticipating their needs for tomorrow. Are you up for the challenge? Join our mission today. *Please ensure the role type (defined below) is appropriate for your needs before applying to this role. ### Onsite Employees who are working in Onsite roles will work primarily onsite. This includes all production and maintenance employees, as they are essential to the development of our products. ### Relocation Assistance may be provided Employee Referral Eligible At Collins, the paths we pave together lead to limitless possibility. And the bonds we form – with our customers and with each other -- propel us all higher, again and again. Apply now and be part of the team that’s redefining aerospace, every day. #MISENG As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote. The salary range for this role is 118,300 USD - 224,900 USD. The salary range provided is a good faith estimate representative of all experience levels. RTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate’s work experience, location, education/training, and key skills. Hired applicants may be eligible for benefits, including but not limited to, medical, dental, vision, life insurance, short-term disability, long-term disability, 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, Employee Scholar Program, parental leave, paid time off, and holidays. Specific benefits are dependent upon the specific business unit as well as whether or not the position is covered by a collective-bargaining agreement. Hired applicants may be eligible for annual short-term and/or long-term incentive compensation programs depending on the level of the position and whether or not it is covered by a collective-bargaining agreement. Payments under these annual programs are not guaranteed and are dependent upon a variety of factors including, but not limited to, individual performance, business unit performance, and/or the company’s performance. This role is a U.S.-based role. If the successful candidate resides in a U.S. territory, the appropriate pay structure and benefits will apply. RTX anticipates the application window closing approximately 40 days from the date the notice was posted. However, factors such as candidate flow and business necessity may require RTX to shorten or extend the application window. RTX is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability or veteran status, or any other applicable state or federal protected class. RTX provides affirmative action in employment for qualified Individuals with a Disability and Protected Veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act. ### Privacy Policy and Terms Click on this link to read the Policy and Terms ## At a glance - Posted by the employer: Sep 17, 2026 - First seen by OpenNash: Oct 13, 2026 - Last checked: Oct 13, 2026 - Listed for: 26 days - Location: STERLING, VA, US - Work arrangement: On-site - Employment type: Full-time[Apply on RTX’s careers site →](https://globalhr.wd5.myworkdayjobs.com/REC_RTX_Ext_Gateway/job/US-VA-STERLING-291--22640-Davis-Dr--DAVIS/Principal-Systems-Engineer---Onsite_01875559) ## More jobs at RTX ### [Principal Systems Engineer - Athena Control Systems (ONSITE)](https://jobs.opennash.com/companies/rtx/jobs/f2773f952c742fc09ca4/) STERLING, VA, US ### [Senior Engineer, Systems Engineering - Onsite](https://jobs.opennash.com/companies/rtx/jobs/89b5a725a4c78d3c12c6/) STERLING, VA, US ### [Senior Principal Systems Engineering Lead, MBSE](https://jobs.opennash.com/companies/rtx/jobs/effb5266a86098d6b83c/) STERLING, VA, US ### [Senior Systems Engineer - Onsite](https://jobs.opennash.com/companies/rtx/jobs/d2564733ae354f4c5f29/) STERLING, VA, US ### [Systems Engineer - Athena Control Systems (ONSITE)](https://jobs.opennash.com/companies/rtx/jobs/f5348ae46c66f089bea4/) STERLING, VA, US ## Similar jobs at other companies ### [Systems Engineer (Onsite)](https://jobs.opennash.com/companies/bae-systems/jobs/27df027e608f1fa66824/) BAE Systems · Nashua, New Hampshire, United States ### [Sr. Systems Engineer- Secret- Onsite Orlando, FLE3](https://jobs.opennash.com/companies/lockheed-martin/jobs/18f6072e47f96d6d2ad0/) Lockheed Martin · Orlando, FL ### [Level 2 Systems Engineer- Secret- Onsite Orlando, FL](https://jobs.opennash.com/companies/lockheed-martin/jobs/2e2e0b77f900dc47af82/) Lockheed Martin · Orlando, FL ### [Systems Engineer Principal – Lead Systems Engineer - Sign On Bonus](https://jobs.opennash.com/companies/bae-systems/jobs/657e2c9d99a45a32a818/) BAE Systems · Boulder, Colorado, United States ### [Principal Quantum Engineer - Quantum Systems](https://jobs.opennash.com/companies/microsoft/jobs/b53b78e06278418a90ae/) Microsoft · United States, Washington, Redmond OpenNash lists jobs from employers’ own careers sites and does not handle applications. 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